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18 April, 11:46

You have a sample of a metal, the sample is exactly 6.02 X 1023atom, if the sample has a mass 55.85 what metal is your sample made of?

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  1. 18 April, 12:51
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    Having 6.02x10^23 atoms means there is 1 mole of atoms.

    molar mass of a substance = mass / no. of moles

    = 55.85/1

    = 55.85 g/mol

    Thus, we know that the relative atomic mass of the atoms is 55.85, which indicates that the metal is iron.
  2. 18 April, 13:08
    0
    9.02 * 10^23 atoms is contained in the Molar Mass of the element so we check with the Periodic Table.

    The metal whose Molar Mass is 55.85 is Iron (Answer).
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